Title :
A Power Allocation Algorithm for Maximizing Total Utility over an MBSFN
Author :
Daeyeon Kim ; Fujii, Teruya ; Kyesan Lee
Author_Institution :
Adv. Wireless Commun. Res. Center, Univ. of Electro-Commun., Chofu, Japan
Abstract :
In order to deliver mobile services, multimedia broadcast multicast services (MBMSs) over single frequency networks (MBSFNs) have been standardized for long term evolution (LTE) systems, where an MBSFN comprises a number of synchronized base stations (BSs) cooperatively multicasting MBMS streams. In this letter, we propose a two-phase power allocation algorithm for an MBSFN. The algorithm first decides ratios for power allocation among the BSs for each subchannel (CH) of orthogonal frequency-division multiplexing (OFDM) channels, and then determines the total power of each CH such that the total utility is maximized, where the utilities can be designed on the basis of system objectives.
Keywords :
Long Term Evolution; OFDM modulation; cooperative communication; multicast communication; multimedia communication; optimisation; resource allocation; LTE; Long Term Evolution; MBMS over single frequency networks; MBSFN; OFDM; mobile services; multimedia broadcast multicast services; orthogonal frequency division multiplexing; power allocation algorithm; synchronized base stations; total utility maximization; Algorithm design and analysis; Bit rate; Multicast communication; OFDM; Resource management; Signal to noise ratio; Wireless communication; MBSFN; Power allocation; utility maximization;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2013.022213.130017
